Rod-packing.



PATENTED APR. z, 1907.- A. W. FRANCE. Ron PACKING.

APPLICATION FILED 00T.13. 1900.

3 SHEETS-SHEET 1..

. 2m., A #f/MQW,

witnesses PATENTED APR. 2, 19o?. A. W. FRANCE. Ron PACKING.

APPLICATION FILED 00T.13. 1900.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

ADAM W. FRANCE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO FRANCE PACKING COMPANY, A CORPORATION OF PENNSYLVANIA.

ROD-PACKING.

Specification of Letters Patent.

Appiimion mea october 13,1900. Seriana. 32.927.

Patented April 2, 1907.,

4ful Imlprovement in Rod-Packing, of which the fol owing'is a specification.

My invention consists of an im roved construction of a piston-rod or s inn ar packin' as will be hereinafter fully setforth an claimed.

Figure 1 represents a central 'longitudinal sectional View of a piston-rod packing embodying my invention. Fig. 2 represents a top plan of a pressure-regulating case that contains the packing-rings. Fig. 3 represents a bot-tom plan thereof. F10'. 4 represents a dplan of one of the padling-rlngs em loye Figs. 5', 6, and 7 represent centra longitudinal sectional views of modified constructions elnbodying my invention. Fig. 8 represents a top plan of a Water-stripping ring shown in F 1g. 1. Fig. 9 represents a transverse section thereof, taken on line :z: Fig. 10 represents a fragmentary central longitudinal section illustrating a modified construction of the Water-stripping ring and case. Fig. 11 represents a fragmentary central longitudinal section illustratin plication of said water-stripping ring to a orizontal piston-rod. Fig. 1.2 represents a perspective view of one of the rings shown 1n Fig. 6.

Similar letters of reference indicate correspondingl parts in the figures.

designates. a piston-rod, and B the case containing the piston-rod packing constructed in accordance with my invention, said case being-conveniently divided longlitudinally to facilitate its application to t piston-rod. The said case B is provided lnteriorly with annular grooves to receiye the packing-rings, the latter being metallic,

in sectional form, and applied around the piston-rod and held in position by springs conveniently situated w1thin peripheral grooves in said rlngs.

The sectional metallic packing-ring illustrated in Fig. 4 is the form shown in my Letters Patent No. 636,512, dated November 12, 1899; but it is understood that I do not confine myself to the use of this particular ferm of ring. In packing piston-rods with this ringit is customary to alternate said the apring With another sectional ring in Which the joints are radial and slightly open, this latv ter rino` being placed next to said cylinder. This azllowsthe steam to pass outwardly through the s acesbetween the ends of the sections of the radially-divided ring and into the case containing the rings. This steam exerts a pressure on the outer periphery of the rings and, it has been found in some cases, especially With large piston- `rods, causes the ring to unduly Wear away, so that the life of the packing-ring is not only shortened, but an excessive amount of friction is created between the rin s and the iston-rod. To overcome this o jection, I have devised a construction t-o prevent this excessive pressure upon the outer peripheries of the rings and to prevent any pressure from the steam or to regulate or control the pressure as occasion requires.

In Fig. 1 the groove in the interior of the case B contains the rings D and E of the pressure-regulating case F. The adjacent sides of these rings D and E have peripheral lateral flanges G, that overlap and interflt, said interfitting portions forming steamjoints and permitting said case to expand or contract, according to requirements. Within the case F thus formed between these rings D and E and their flanges G are laced a p urality of packing-rings H, prefera l of the form shown in Figj4-for instance, our in number, with adjacent rings breaking joints. The rin sHareprovided with dowelp ins Q and openings R, the dowel-pins entering the openings in adjacent rings'for the purpose o holding them in the desired position, breaking joints Within the pressureregulating case F. It is understood, of course, that the contact between the sides of I"the adjacent rings H -also forms steamjoints and that the contact between the outer faces of the outer rings and the agiarings D and E of the case F and the packing- The combined thicknessA IOO ' lating case C and also to regu ate the pressure within said case upon the outer periphery of the packing-rings. This construction consists of an outlet from the pressure-regulating case F, which may be to the atmosphere` or the receiver of a compound-engine, or said outlet mav be controlled by a pressure-regulating valve. This connection can be secured in a simpler manner by mea-ns of a pluralityv of o enings K in the lower ring E of case F, as in igs, 1 and 3, an annular groove` L being made in the bottom of this ring E, into which these openings K lead. The port M in the lower wall of the groove C is situated so that it communicates with the groove L when the pressure-regulating case F -is in position, said port communicating with a pipe N exterior to t-he case B and which may lead to the atmosythe-lower wall of the groove C.l Another modification is shown in this igure rin t-he connection between the interior of the pressure-regulating case F and thel pi e N, the same consisting in making an annuiiir groove Vin the bottom wall of the groove C instead of in the lower side of the ring E, t-he said o enings K communicating with the groove I' and a passage W leading from the groove V to the pipe Then the pressure-regulating case 1s thus provided with an outlet, it willbe vseen that should steam leak through the joints of the pressure-regulating case F or between the rings H it. cannot accumulate wit-hin said case to form an excessive pres-v sure, but will pass ofi' through the passage, as set forth above, and when the outlet is controlled by a .pressure-regulating valve any desired pressure may bey maintained upon the outer peripheries of said rings H.

In Fig. 6 I have shown a modified construction of the pressure-regulating case by means of which I obviate' the use of the rings D and -E `(shown inFig. 1) and em- Y for this purpose. In said Fig. 6 a plurality of packing-rings Z are applied to the pistonrod A', the lower packing-ring Z resting upon the bottom of the groove X, it beiner understood that steam-joints are formed zbetween the lower packing-ring and the lower wall of the groove X, as well as between adjacent rings Z and between the upper ring Z and the lower ring B. Steam-joints are also formed between the rings B and between the outer peripheries of rings B and the outer wall of the groove X, said rings B and C being held under tension against the lower wall of the groove X by means of the springs C', placed within the sockets D and E. T o carry off the steam that may accumulate within the case thus formed by the groove X, a port L is made in t-he lower side thereof, that leads through t-he case Y to the pipe M. The steam that follows the piston-rod into the pressure-regulating case or groove X in this construction is thus prevented by the rings B from reaching the space between the outer peripheries of the packing-ring Z and the outer wall of the groove X.

- In Fig. 7 I have shown another modified construction in this pressure-regulating case, the same consistinvr of a single ring F having a ilange G', the width ot which is equal to the combined thickness of the packing-rings H employed, so that when arranged in the lnany ner shown 1n Fig. 7 the lower end of iange,

G forms a steam-joint with the lower wall of the groove J and a steam-joint is formed between the ripper packing-ring H and the lower interior face of the ring F K beingemployed to hold the parts in the desired position under tension, as will be understood. The lower wall of the groove J becomes, in eiect, one end of the pressureregulating case. To carry ofil the steam and regulate the pressure within the pressure regulating case F, a port K is made in the bottom wall of the groove J.' so as to be located between the outer peripheries of the packing-rings H and the flange G ot said case, said port communicating through the wall of the packing-case with the pipe P.

As shown in Figs. 1 and 5, an opening Q is made in a partition of the case B, that colulnunicates with a pipe R', through which a; lubricant is fed to the interior of the packino` and directly to the piston-rod A.

Another part of my invention consists oflff: means by which I obviate the objectionable results due to the water ofcondensation that follows the piston-rod to the outside of the packing in both vertical and horizontal engines and which in marine `en ines is further objectionable owing to the oss -of water, economy in the use of water being an important feature in this class of engines. overcome this objection, I employ a waterstripping ring 1, Figs. 1, 8, and 9. This ring ICO springs IIO 6 5 plojr the interior annular groove .X in the case is conveniently wider than the ordinary 13o packing-rings, although constructed on the same general lines and placed within the groove 2 in the interior of the box B. On the upper sides of. this ring is an annular groove or water-channel 3, the inner and upper edge of which is coincident with the upper edge of the inner periphery of said ring 1.- The inner and upper edge of this ring is th'us tapered and serves to strip the Water from the piston-rod as it vibrates therethrough, the water being thus prevented from escaping to the exterior. The lower side of this ring 1 is provided with the annular groove 4, that connects with the Water-channel 3 by means of a plurality of openings 5, and in the partition 6, forming the lower side ofthe groove 2, is an opening 7, communicating with this roove 4 and with a pipe 8, by means of w 'ch water thus stripped from the piston -rod can be saved and reused. The pipe 8 may lead to the atmosphere or to a condenser, and in the latter case I employ the packing-rings 1 0 and 1 1 in the grooves 12 of the case B exterior to the water-ring in view of the condenser-vacuum, and rings 10 and 11 being of the form shown in Fig. 4.

In Fig. 10 I have shown a modification of the water-stripping ring, which consists in making the groove 13 in the partition 14 instead of in the bottom of the water-stripping ring 15, the opening 16 .in said ring extending to the lower side thereof to connect with the groove '13.

In Fig. 11 I have shown a water-strip ing ring 17 applied to a horizontal piston-ro 1S, being situated wit-hin a groove 19 in case 20, the opening 21 from the channel 22 being situated at the lower side of the ring and the pipe 23 leading from the lower side also.

he packing shown in Fig. 1 is also provided with a pair of packing-rings 24, situated in a groove 25, in which the ring adjacent the steam-cylinder may be com osed of radiallydivided sections. Said pac 'ng-rings 24 are not essential; however, as the rod can be packed by using only the rings contained Within the rassure-regulating case, the number of ac ing-rings` employed, and other similar etails de ending upon circumstances and conditions, wgiichvary with different piston-rods, and therefore, except in the claims for the specific lconstruction, I do not limit myself to-the details herein shown and described. Y Y

Having thus described myv invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. In a metallic rod-pacldng, the combination of a rod, metallic packing-rings, means for holding said rings upon. said rod, and means for carr g off the. pressure from the cylinder whereliynthe same 1s prevented from effecting the outer peripheries of said rings.

2. In a metallic rod-packing, the combination of a rod, sectional metallic packing- 'sections of each rings, means for hol lng rings, steam-joints formed between the and between adjacent rod, and means for carrying ottthe pressure from the cylinder whereby the same is prevented from effecting thel outer peripheries of said rings.

3. In a metallic rod-packing, the combination of a rod, metallic packing-rings, and a case for said rings, adapted to carry off the pressure from the cylinder whereby the same. is prevented efecting the outer peripheries of said rings.

4. In a metallic rod-packing, the combination of a rod, sectional metallic packingrings, steam-joints being formed between the sections of each ring and between adjacent rings, and a case for said rings, the ends of said case forming steam-j oints with said packing-rings and adapted itc carry off the pres-- sure from the cylinder whereby the same is prevented from eiecting the outer peripheries of said rin s.

said rings upon said 5. In a meta lic rod-packing, the combinal tion of a rod, metallic packing-rings, means for holding said rings upon said rod, means for carrying otl" the pressure from the cylinder whereby the same is prevented from eiiecting the outer peripheries of said rings, and means for ermitting lateral movement of said rod with respect to the cylinder.

6. In a metallic rod-packing, the combination of a rod, metallic packing-rings, means for holding said rings upon said rod, means for carrying off the pressure from the cvlinder whereby the same is prevented from efi'ecting the outer peripheries of said rings, and

means for permiting the lateral movement of- IOO said rod, rmgs and the means controlling the I latter with respect tothe c lnder.

7. In a metallic rod-pac ing, the combinationl of a rod, a case surrounding the same,

metallic packing-rings inclosed within said case, and means forcarrying ofi" steam-.pressure from the cylinder whereby the same is prevented from entering said case and effecting the outer peripheries of said packijngtion of a rod, a case surrounding the saine and having an interior groove or compartmenty nfetallic packing-rings situated within said groove or compartment, and means for carryoff the pressure of the steam from the cylinder whereby the same is prevented from entering said grodve or compartment and effectin the outer peripheries of said rings.

9. n a rod-packing, a pressure-regulating case, and packing-rings therein, a space being formedbetween said case and rings, and the IIO 8. In a metallicrod-packing, the combinra- I ing case, packing-rings therein, a space being i ing-rings, steam-joints being formed between said packing-rings and between said packing-rings and said case, for'thepurpose of preventing steam-pressure from the cylinder on the outer side of the packing-rings and an outlet from said case. y

11. Ina rod-packing, a pressure-regulatformed between said rings and case, and the cbntact between said case, rings and rod being ada ted to prevent the ingress of steam into sai space, and means for regulating the pressure within said case.

12. In a rod-packing, a pressure-regulating case, paclnng-rings therein, an outlet from said case, and a ressure-regulating valve `controlling said-out et. v

13. In a rod-packing, a pressure-regulati-ng case, 'fandnpacking-rings thereinA forming steam-joints 7between each other and between said packing-rings and the endsl of the case, a space being formed between said case and rings, and the contact between said case, rings and rod being ada ted to prevent the ingress of steam into sai space.

14. In a rod-packing, a pressure-regulating case, closed on the outside and having openings in its ends for the rod, and packingrings in said case forming steam-joints between eachother andbetween said packingrings and the ends of the case, a space being formed between said case and rings, and thei contact between said case, rings and rod 'being adapted to preventthe ingress of steam into'said space.

15. In amd-packing, a packing-case having an interior groove or cavity, and a ressure-regulating case containing pac 'ingrings situated therein, a space being formed between said case and rings.and the contact between said case, rings and rod being adapted to prevent the ingress of steam into said space. 4

16. In a rod-packing, a packing-case having an interior groove or cavity, a pressureregula-ting case containing packing-rings situated therein, a space being formed between said case and rings, and the contact between said case, rings and rod being adapted -to prevent the'ingress ofsteam into said l space, and an outlet from said pressure-regulating case to the exterior of said packingpacking-rings, a space being formedLbetween said case and rings, and the contact between said case, rings and rod being adapted to pre- Y exterior of the former and the .interionof the latter.

19. In a rod-packing, a packing-case, a` vpressure-regulating case therein containing ackinfr-rinfrs a s ace bein formed between P C D Y said case and rings, and th contact between l said case, rings and rod being adapted to prevent the ingress of steam into said space, a channel in the exterior of said ressure-regulating case communicating wit A the interior thereof and with the exterior of the packingoase.

20. In a rod-packing, a pressure-regulatl ing case containing packing-rings and .con-

sisting of rings having lateral flanges pro vided with interiitting ends forming a steam-joint, a space being formed between said case and rings, and the contact between said case, rings and rod being adapted to prevent the ingress of steam into said space.

21. In a rod-packing, a packing-cas having an interior groove or cavit v,` a pressureregulating case therein consisting of relatively movable members havinolatera iianges provided with interfitting arj acent ends forming a steam-joint, packing-rings within said pressure-regulating case forming steam-joints between eachother and the ends of the pressure regulating case, devices for holding the said members and packing-rings together under,

between said f tension, a space being formed case and rings, land the contact between said roo case, rings and rod being ada ted to prevent i the ingress of steam into sait space, and an outlet from said pressure-regulating case to the exterior of the packing-case.

22. In a rod-packing a packing-case having interior grooves or cavities containing packing-rings, a passage through the wall or Harige separating saidJ grooves or cavities and terminating at its inner end in a port adjacent the rod, the opposite end of the passage communicating with a source for supplying lubricant.

23. In a rod-packing, a packing-case, a pressure-regulating case therein and comprising relatively movable'members with a IOS IIO

steam-joint therebetween, a passage from the interior of the pressure-regulating case to the exterior of thepacking-case ,through abutting ends of the said members, and packingrings iii said pressure-regulating case bearing yieldinvly against the rod.

24. In la rod-p pressure-regulating case therein and comprising relatively movable members with a steam-joint therebetween, a passage from the interior of the pressure-regulating case to the exterior of the packing-case throughabutting ends of said members, packingacking, a packing-case,H a

5 peripheries of the rin s.

25. In a rod-packing, a packing-case, a pressure-regulating case therein and comprising relatively movable members with a steam-joint therebetween, a passage from 1o the interior of the pressure-regulatmg case to the exterior of the aching-case through abutting ends of saidp mem ers, packingrings in the pressure-regulatin case, means holding said members and pac -rings to- 15 gether and preventing the pressure from the cylinder from effecting the outer peripheries of the rings, and means acting on the outer eripheries of the rings to press them yieldmgly against the rod.

' sure-regulat' 26. In a rod-packing, a vpacking-case having interior groove, a` pressure'- re lating case therein land comprising relative y movable members, packing-rings Within the prescase, the end of` one of said members forming a steam-Joint with one end of said groove', means hol ing said packingrings and members to ether, and an outlet 4from the pressure-regu ating case.

27. In a metallic rod-packing, a rod, metallic packing-rings, means for; holding said rings u on said rod in combination with means or prevent the pressure from the cylinder from effecting the outer periphery o'f said rings. A

` ADAM W. FRANCE.

Witnesses: JonN A. Wnmnnsnnm, HARRY COBB KENNEDY. 

